Reactive dyes, processes for their preparation and their use

ABSTRACT

Reactive dyes of the formula ##STR1## in which R 1 , R 2 , R 3  and R 4  independently of one another are hydrogen or substituted or unsubstituted C 1  -C 4  alkyl, 
     B is an aliphatic bridge member, 
     Y 1  and Y 2  independently of one another are halogen or carboxypyridinium, 
     A 1  is the radical of an anthraquinone, phthalocyanine, dioxazine, formazan or disazo dye or a radical of the formulae (2a) to (2h) defined in claim 1 and 
     A 2  is as defined above for A 1  or is a radical of the formulae (2i) to (2m), 
     where A 1  and A 2  have different meanings to one another, are particularly suitable for dyeing or printing fibre materials containing hydroxyl groups or containing nitrogen. Dyeings having good fastness properties coupled with a high tinctorial yield are obtained.

The present invention relates to novel reactive dyes, processes for their preparation and their use for dyeing or printing fibre materials.

The practice of dyeing using reactive dyes has recently led to increased demands on the quality of the dyeings and the profitability of the dyeing process. There is consequently still a demand for novel reactive dyes which have improved properties, especially in respect of application.

Reactive dyes which have an adequate substantivity and at the same time a good ease of washing out of the non-fixed portions are now required for dyeing. They should furthermore have a good tinctorial yield and high reactivity, and dyeings having high degrees of fixing in particular should be produced. These requirements are not met in all properties by the known dyes.

The present invention is therefore based on the object of discovering novel improved reactive dyes for dyeing and printing fibre materials which have the qualifies characterized above to a high degree. The novel dyes in particular should have high fixing yields and high fibre-dye bond stabilities, and furthermore the portions which are not fixed to the fibre should be easy to wash out. They should furthermore produce dyeings having good all-around properties, for example light- and wet-fastnesses.

It has been found that this object is largely achieved by the reactive dyes defined below.

The invention therefore relates to reactive dyes of the formula ##STR2## in which R₁, R₂, R₃ and R₄ independently of one another are hydrogen or substituted or unsubstituted C₁ -C₄ alkyl,

B is an aliphatic bridge member,

Y₁ and Y₂ independently of one another are halogen or carboxypyridinium,

A₁ is the radical of an anthraquinone, phthalocyanine, dioxazine, formazan or disazo dye, or a radical of the formula ##STR3## in which R₁₀ is 0 to 3 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR4## in which R₁₀ is 0 to 3 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR5## in which R₁₂ is C₁ -C₄ alkanoyl, benzoyl or a halotriazinyl radical, which may be further substituted, ##STR6## in which R₁₂ is C₁ -C₄ alkanoyl, benzoyl or a halotriazinyl radical, which may be further substituted, ##STR7## in which R₁₃ is 0 to 3 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR8## in which R₁₇ is 0 to 2 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo; and

Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl,

or ##STR9## in which R₁₈ is 0 to 2 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo; and

Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl, and

A₂ is as defined above for A₁ or is a radical of the formula ##STR10## in which R₁₀ is 0 to 3 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR11## in which R₁₁ is 0 to 4 identical or different substituents from the group comprising halogen, nitro, cyano, trifluoromethyl, sulfamoyl, carbamoyl, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, amino, acetylamino, ureido, hydroxyl, carboxyl, sulfomethyl and sulfo, ##STR12## in which R₁₃ is 0 to 3 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, or ##STR13## in which R₁₄ and R₁₆ independently of one another are hydrogen, C₁ -C₄ alkyl or phenyl, and

R₁₅ is hydrogen, cyano, carbamoyl or sulfomethyl, where A₁ and A₂ have different meanings to one another.

Alkyl radicals R₁, R₂, R₃ and R₄ in the reactive dye of the formula (1) are straight-chain or branched; the alkyl radicals can be further substituted, for example by halogen, hydroxyl, cyano, C₁ -C₄ alkoxy, C₁ -C₄ alkoxycarbonyl, carboxyl, sulfamoyl, sulfo or sulfato. Examples of the radicals R₁, R₂, R₃ and R₄ are the following: methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, carboxymethyl, β-carboxyethyl, β-carboxypropyl, methoxycarbonylmethyl, ethoxycarbonylmethyl, β-methoxyethyl, β-ethoxyethyl, β-methoxypropyl, β-chloroethyl, γ-bromopropyl, β-hydroxyethyl, β-hydroxybutyl, β-cyanoethyl, sulfomethyl, β-sulfoethyl, aminosulfonylmethyl and β-sulfatoethyl. Preferably, R₁, R₂, R₃ and R₄ independently of one another are hydrogen, methyl or ethyl, in particular hydrogen.

The aliphatic bridge member B in the reactive dye of the formula (1) is preferably a C₂ -C₁₂ alkylene radical, which can be interrupted by 1, 2 or 3 members from the group comprising --NH--, --N(CH₃)-- and --O-- and is unsubstituted or substituted by hydroxyl, sulfo or sulfato.

The bridge member B in the reactive dye of the formula (1) is preferably a C₂ -C₁₂ alkylene radical, which can be interrupted by 1, 2 or 3 --O-- radicals.

The bridge member B in the reactive dye of the formula (1) is particularly preferably a C₂ -C₆ alkylene radical, in particular a radical of the formula --(CH₂)--₂₋₆, preferably ethylene or propylene.

The radicals Y₁ and Y₂ in the reactive dye of the formula (1) independently of one another are, in particular, fluorine or chlorine.

Radicals A₁ and A₂ of an anthraquinone, phthalocyanine, dioxazine, formazan or disazo dye in the reactive dye of the formula (1) can contain the substituents customary in organic dyes bonded to their basic structure.

Examples of substituents in the radicals A₁ and A₂ are: alkyl groups having 1 to 4 carbon atoms, such as methyl, ethyl, propyl, isopropyl or butyl, where the alkyl radicals can be further substituted, for example by hydroxyl, sulfo or sulfato; alkoxy groups having 1 to 4 carbon atoms, such as methoxy, ethoxy, propoxy, isopropoxy or butoxy, where the alkyl radicals can be further substituted, for example by hydroxyl, sulfo or sulfato; phenyl which is unsubstituted or substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl or sulfo; acylamino groups having 1 to 8 carbon atoms, in particular such alkanoylamino groups, for example acetylamino or propionylamino; benzoylamino which is unsubstituted or substituted in the phenyl ring by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen or sulfo; phenylamino which is unsubstituted or substituted in the phenyl ting by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen or sulfo; N,N-di-β-hydroxyethylamino; N,N-di-β-sulfatoethylamino; sulfobenzylamino; N,N-disulfobenzylamino; alkoxycarbonyl having 1 to 4 carbon atoms in the alkoxy radical, such as methoxycarbonyl or ethoxycarbonyl; alkylsulfonyl having 1 to 4 carbon atoms, such as methylsulfonyl or ethylsulfonyl; trifluoromethyl; nitro; amino; cyano; halogen, such as fluorine, chlorine or bromine; carbamoyl; N-alkylcarbamoyl having 1 to 4 carbon atoms in the alkyl radical, such as N-methylcarbamoyl or N-ethylcarbamoyl; sulfamoyl; N-mono- or N,N-dialkylsulfamoyl having in each case 1 to 4 carbon atoms, such as N-methylsulfamoyl, N-ethylsulfamoyl, N-propylsulfamoyl, N-isopropylsulfamoyl or N-butylsulfamoyl, where the alkyl radicals can be further substituted, for example by hydroxyl or sulfo; N-(β-hydroxyethyl)sulfamoyl; N,N-di(β-hydroxyethyl)sulfamoyl; N-phenylsulfamoyl which is unsubstituted or substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl or sulfo; ureido; hydroxyl; carboxyl; sulfomethyl or sulfo and fibre-reactive radicals.

The radicals A₁ and A₂ preferably in each case contain at least one sulfo group, in particular 1 to 4 sulfo groups, and preferably 1 to 3 sulfo groups.

A reactive group in a radical A₁ or A₂ of an anthraquinone, phthalocyanine, dioxazine, formazan or disazo dye is, for example, an alkanoyl or alkylsulfonyl radical substituted by an atom which can be split off or a group which can be split off, an alkenoyl or alkenesulfonyl radical which is unsubstituted or substituted by an atom which can be split off or a group which can be split off, or an alkenoyl or alkenesulfonyl radical containing a vinyl group. The alkanoyl, alkylsulfonyl and alkenesulfonyl radicals mentioned as a rule contain 2 to 8 carbon atoms and the alkenoyl radicals as a rule contain 3 to 8 carbon atoms. Radicals containing carbo- or heterocyclic 4-, 5- or 6-membered rings substituted by an atom which can be split off or a group which can be split off are further examples. Heterocyclic radicals are, for example, those which contain at least one substituent which can be split off bonded to a heterocyclic radical; inter alia, those which contain at least one reactive substituent bonded to a 5- or 6-membered heterocyclic ring, such as to a monoazine, diazine, triazine, pyridine, pyrimidine, pyridazine, pyrazine, thiazine, oxazine or asymmetric or symmetric triazine ring or to such a ring system which contains one or more fused aromatic rings, such as a quinoline, phthalazine, cinnoline, quinazoline, quinoxaline, acridine, phenazine and phenanthridine ring system.

Atoms which can be split off and groups which can be split off are, in addition to others, for example, halogen, such as fluorine, chlorine or bromine, ammonium, including hydrazinium, sulfato, thiosulfato, phosphato, acetoxy, propionoxy, azido, carboxypyridinium or thiocyanato.

Bridge members between the dye radical and the fibre-reactive radical are, in addition to the direct bond, the most diverse radicals. The bridge member is, for example, an aliphatic, aromatic or heterocyclic radical; the bridge member furthermore can be composed of various such radicals. The bridge member as a rule contains at least one functional group, for example the carbonyl group or the amino group, where the amino group can be further substituted by C₁ -C₄ alkyl which is unsubstituted or substituted by halogen, hydroxyl, cyano, C₁ -C₄ alkoxy, C₁ -C₄ alkoxycarbonyl, carboxyl, sulfamoyl, sulfo or sulfato. An aliphatic radical is, for example, an alkylene radical having 1 to 7 carbon atoms or branched isomers thereof. The carbon chain of the alkylene radical can be interrupted by a heteroatom, for example an oxygen atom. An aromatic radical is, for example, a phenyl radical, which can be substituted by C₁ -C₄ alkyl, for example methyl or ethyl, C₁ -C₄ alkoxy, for example methoxy or ethoxy, halogen, for example fluorine, bromine or, in particular, chlorine, carboxyl or sulfo, and a heterocyclic radical is, for example, a piperazine radical.

Examples of reactive groups are the following: vinylsulfonyl, β-chloroethylsulfonyl, β-sulfatoethylsulfonyl, β-acetoxy-ethylsulfonyl, phosphatoethylsulfonyl, β-thiosulfatoethylsulfonyl, N-methyl-N-(β-sulfoethylsulfonyl)amino, acryloyl, mono-, di- or trichloroacryloyl, such as --CO--CCl=CH₂, --CO--CH=CH--Cl, --CO--CCl=CH--CH₃ ; mono-, di- or tribromoacryloyl, such as --CO--CBr=CH₂, --CO--CH=CH--Br, --CO--CBr=--CH--CH₃ ; and --CO--CCl=CH--COOH, --CO--CH=CCl--COOH, --CO--CBr=CH--COOH, --CO--CH=CBr--COOH, --CO--CCl=CCl--COOH, --CO--CBr=CBr--COOH; precursors of the acryloyl radical and of derivatives of the acryloyl radical, such as β-chloro- or β-bromopropionyl, 3-phenylsulfonylpropionyl, 3-methylsulfonylpropionyl, 2-chloro-3-phenylsulfonylpropionyl, 2,3-dichloropropionyl, 2,3-dibromopropionyl; and 2-fluoro-2-chloro-3,3-difluorocyclobutane-1-carbonyl, 2,2,3,3-tetrafluorocyclobutane-1-carbonyl or -1-sulfonyl, β-(2,2,3,3-tetrafluorocyclobut-1-yl)acryloyl, a- or β-alkenyl- or arylsulfonylacryloyl groups, such as α- or β-methylsulfonylacryloyl, chloroacetyl, bromoacetyl, 4-(β-chloroethylsulfonyl)butyryl, 4-vinylsulfonylbutyryl, 5-(β-chloroethylsulfonyl)caproyl, 6-vinylsulfonylcaproyl; and 4-fluoro-3-nitrobenzoyl, 4-fluoro-3-nitrophenylsulfonyl, 4-fluoro-3-methylsulfonylbenzoyl, 4-fluoro-3-cyanobenzoyl, 2-fluoro-5-methylsulfonylbenzoyl.

The following fibre-reactive radicals may furthermore be mentioned as examples: mono- or dihalo-symmetric triazinyl radicals, for example 2,4-dichlorotriazin-6-yl, 2-amino-4-chlorotriazin-6-yl, 2-alkylamino-4-chlorotriazin-6-yl, such as 2-methylamino-4-chlorotriazin-6-yl or 2-ethylamino- or 3-propylamino-4-chlorotriazin-6-yl, 2-β-oxyethylamino-4-chlorotriazin-6-yl, 2-di-β-oxyethylamino-4-chlorotriazin-6-yl and the corresponding sulfuric acid half-esters, 2-diethylamino-4-chlorotriazin-6-yl, 2-morpholino- or 2-piperidino-4-chlorotriazin-6-yl, 2-cyclohexylamino-4-chlorotriazin-6-yl, 2-arylamino- and substituted arylamino-4-chlorotriazin-6-yl, such as 2-phenylamino-4-chlorotriazin-6-yl, 2-(o-, m- or p-carboxy- or sulfophenyl)amino-4-chlorotriazin-6-yl, 2-alkoxy-4-chlorotriazin-6-yl, such as 2-methoxy- or-ethoxy-4-chlorotriazin-6-yl, 2-(phenylsulfonylmethoxy)-4-chlorotriazin-6-yl, 2-aryloxy and substituted aryloxy-4-chlorotriazin-6-yl, such as 2-phenoxy-4-chlorotriazin-6-yl, 2-(p-sulfophenyl)oxy-4-chlorotriazin-6-yl, 2-(o-, m- or p-methyl- or methoxyphenyl)oxy-4-chlorotriazin-6-yl, 2-alkylmercapto- or 2-arylmercapto- or 2-(substituted aryl)mercapto-4-chlorotriazin-6-yl, such as 2-β-hydroxy-ethylmercapto-4-chlorotriazin-6-yl, 2-phenylmercapto-4-chlorotriazin-6-yl, 3-(4'-methylphenyl)mercapto-4-chlorotriazin-6-yl, 2-(2',4'-dinitro)phenylmercapto-4-chlorotriazin-6-yl, 2-methyl-4-chlorotriazin-6-yl, 2-phenyl-4-chlorotriazin-6-yl, 2,4-difluorotriazin-6-yl, monofluorotriazinyl radicals which are substituted by amino, alkylamino, aralkylamino or acylamino groups, where alkyl is, in particular, substituted or unsubstituted C₁ -C₄ alkyl, aralkyl is, in particular, substituted or unsubstituted phenyl-C₁ -C₄ alkyl and aryl is, in particular, phenyl or naphthyl which are unsubstituted or substituted by sulfo, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, carboxylic acid groups, acylamino groups and halogen atoms, such as fluorine, chlorine or bromine, for example 2-amino-4-fluorotriazin-6-yl, 2-methylamino-4-fluorotriazin-6-yl, 2-ethylamino-4-fluorotriazin-6-yl, 2-iso-propylamino-4-fluorotriazin-6-yl, 2-dimethylamino-4-fluorotriazin-6-yl, 2-diethylamino-4-fluorotriazin-6-yl, 2-β-methoxyethylamino-4-fluorotriazin-6-yl, 2-β-hydroxyethylamino-4-fluorotriazin-6-yl, 2-di-(β-hydroxyethylamino)-4-fluorotriazin-6-yl, 2-β-sulfoethylamino-4-fluorotriazin-6-yl, 2-β-sulfoethylmethylamino-4-fluorotriazin-6-yl, 2-carboxymethylamino-4-fluorotriazin-6-yl, 2-β-cyanoethylamino-4-fluorotriazin-6-yl, 2-benzolamino-4-fluorotriazin-6-yl, 2-β-phenylethylamino-4-fluorotriazin-6-yl, 2-benzylmethylamino-4-fluorotriazin-6-yl, 2-(2'-, 3'- or 4'-sulfobenzyl)amino-4-fluorotriazin-6-yl, 2-cyclohexylamino-4-fluorotriazin-6-yl, 2-(o-, m- or p-methylphenyl)amino-4-fluorotriazin-6-yl, 2-(o-, m- or p-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(2',5'-disulfophenyl)amino-4-fluorotriazin-6-yl, 2-(o-, m- or p-chlorophenyl)amino-4-fluorotriazin-6-yl, 2-(o-, m- or p-methoxyphenyl)-4-fluorotriazin-6-yl, 2-(2'-methyl-4'-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(2'-methyl-5'-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(2'-chloro-4'-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(2'-chloro-5'-sulfophenyl)-amino-4-fluorotriazin-6-yl, 2-(2'-methoxy-4'-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(o-, m- or p-carboxyphenyl)amino-4-fluorotriazin-6-yl, 2-(2',4'-disulfophenyl)-amino-4-fluorotriazin-6yl, 2-(3',5'-disulfophenyl)amino-4-fluorotriazin-6-yl, 2-(2'-carboxy-4-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(2'-carboxy-4-sulfophenyl)amino-4-fluorotriazin-6-yl, 2-(6'-sulfonaphth-2'-yl)amino-4-fluorotriazin-6-yl, 2-(4',8'-di sulfonaphth-2'-yl)amino-4-fluorotriazin-6-yl, 2-(6',8'-disulfonaphth-2'-yl)amino-4-fluorotriazin-6-yl, 2-(N-methylphenyl)amino-4-fluorotriazin-6-yl, 2-(N-ethylphenyl) amino-4-fluortriazin-6-yl, 2-(N-β-hydroxyethylphenyl)amino-4-fluorotriazin-6-yl, 2-(N-iso-propylphenyl)amino-4-fluorotriazin-6-yl, 2-morpholino-4-fluorotriazin-6-yl, 2-piperidino-4-fluorotriazin-6-yl, 2-(4',6',8'-trisulfonaphth-2'-yl)-4-fluorotriazin-6-yl, 2-(3',6',8'-trisulfonaphth-2'-yl)-4-fluorotriazin-6-yl, 2-(3',6'-disulfonaphth-1'-yl)-4-fluorotriazin-6-yl, mono-, di- or trihalopyfimidinyl radicals, such as 2,4-dichloropyrimidin-6-yl, 2,4,5-trichloropyrimidin-6-yl, 2,4-dichloro-5-nitro- or -5-methyl- or-5-carboxymethyl- or -5-carboxy- or-5-cyano- or-5-vinyl- or -5-sulfo- or -5-mono-, -di- or-trichloromethyl- or -5-carboalkoxypyrimidin-6-yl, 2,6-dichloropyrimidine-4-carbonyl, 2,4-dichloropyrimidine-5-carbonyl, 2-chloro-4-methylpyrimidine-5-carbonyl, 2-methyl-4-chloropyrimidine-5-carbonyl, 2-methylthio-4-fluoropyrimidine-5-carbonyl, 6-methyl-2,4-dichloropyrimidine-5-carbonyl, 2,4,6-trichloropyrimidine-5-carbonyl, 2,4-dichloropyrimidine-5-sulfonyl, 2-chloroquinoxaline-3-carbonyl, 2- or 3-monochloroquinoxaline-6-carbonyl, 2- or 3-monochloroquinoxaline-6-sulfonyl, 2,3-dichloroquinoxaline-6-carbonyl, 2,3-dichloroquinoxaline-6-sulfonyl 1,4-dichlorophthalazine-6-sulfonyl or -6-carbonyl, 2,4-dichloroquinazoline-7- or-6-sulfonyl or -carbonyl, 2- or 3- or 4-(4',5'-dichloro-6'-pyridazin-1'-yl)phenylsulfonyl or -carbonyl, β-(4',5'-dichloro-6'-pyridazon-1'-yl)ethylcarbonyl, N-methyl-N-(2,4-dichlorotriazin-6-yl)carbamyl, N-methyl-N-(2-methylamino-4-chlorotriazin-6-yl) carbarmyl, N-methyl-N-(2-dimethylamino-4-chlorotriazin-6-yl)carbamyl, N-methyl or N-ethyl-N-(2,4-dichlorotriazin-6-yl)aminoacetyl, N-methyl-N-( 2,3-dichloroquinoxaline-6-sulfonyl)aminoacetyl, N-methyl-N-(2,3-dichloroquinoxaline-6-carbonyl)aminoacetyl, and the corresponding bromine and fluorine derivatives of the abovementioned chlorine-substituted heterocyclic radicals, among these, for example, 2-fluoro-4-pyrimidinyl, 2,6-difluoro-4-pyrimidinyl, 2,6-difluoro-5-chloro-4-pyrimidinyl, 2-fluoro-5,6-dichloro-4-pyrimidinyl, 2,6-difluoro-5-methyl-4-pyrimidinyl, 2,5-difluoro-6-methyl-4-pyrimidinyl, 2-fluoro-5-methyl-6-chloro-4-pyrimidinyl, 2-fluoro-5-nitro-6-chloro-4-pyrimidinyl, 5-bromo-2-fluoro-4-pyrimidinyl, 2-fluoro-5-cyano-4-pyrimidinyl, 2-fluoro-5-methyl-4-pyrimidinyl, 2,5,6-trifluoro-4-pyrimidinyl, 5-chloro-6-chloromethyl-2-fluoro-4-pyrimidinyl, 2,6-difluoro-5-bromo-4-pyrimidinyl, 2-fluoro-5-bromo-6-methyl-4-pyrimidinyl, 2-fluoro-5-bromo-6-chloromethyl-4-pyrimidinyl, 2,6-difluoro-5-chloromethyl-4-pyrimidinyl, 2,6-difluoro-5-nitro-4-pyrimidinyl, 2-fluoro-6-methyl-4-pyrimidinyl, 2-fluoro-5-chloro-6-methyl-4-pyrimidinyl, 2-fluoro-5-chloro-4-pyrimidinyl, 2-fluoro-6-chloro-4-pyrimidinyl, 6-trifluoromethyl-5-chloro-2-fluoro-4-pyrimidinyl, 6-trifluoromethyl-2-fluoro-4-pyrimidinyl, 2-fluoro-5-nitro-4-pyrimidinyl, 2-fluoro-5-trifluoromethyl-4-pyrimidinyl, 2-fluoro-5-phenyl- or-5-methylsulfonyl-4pyrimidinyl, 2-fluoro-5-carboxamido-4-pyrimidinyl, 2-fluoro-5-carbomethoxy-4pyrimidinyl, 2-fluoro-5-bromo-6-trifluoromethyl-4-pyrimidinyl, 2-fluoro-6-carboxamido-4-pyrimidinyl, 2-fluoro-6-carbomethoxy-4-pyrimidinyl, 2-fluoro-6-phenyl-4-pyrimidinyl, 2-fluoro-6-cyano-4-pyrimidinyl, 2,6-difluoro-5-methylsulfonyl-4-pyrimidinyl, 2-fluoro-5-sulfonamido-4-pyrimidinyl, 2-fluoro-5-chloro-6-carbomethoxy-4-pyrimidinyl, 2,6-difluoro-5-trifluoromethyl-4-pyrimidinyl, 6-fluoro-5-chloropyrimidin-4-yl, 6-fluoro-5-trifluoromethylpyrimidin-4-yl, 6-fluoro-2-methylpyrimidin-4-yl, 6-fluoro-5-chloro-2-methylpyrimidin-4-yl, 5,6-difluoropyrimidin-4-yl, 6-fluoro-5-chloro-2-trifluoromethylpyrimidin-4-yl, 6-fluoro-2-phenylpyrimidin-4-yl, 6-fluoro- 5-cyanopyrimidin-4-yl, 6-fluoro-5-nitropyrimidin-4-yl, 6-fluoro-5-methylsulfonylpyrimidin-4-yl, 6-fluoro-5-phenylsulfonylpyrimidin-4-yl, triazine radicals containing sulfonyl groups, such as 2,4-bis(phenylsulfonyl)triazin-6-yl, 2-(3'-carboxyphenyl)sulfonyl-4-chlorotriazin-6-yl, 2-(3'-sulfophenyl)sulfonyl-4-chlorotriazin-6-yl, 2,4-bis(3'-carboxyphenylsulfonyl)triazin-6-yl; pyrimidine rings containing sulfonyl groups, such as 2-carboxymethylsulfonylpyrimidin-4-yl, 2-methylsulfonyl-6-methylpyrimidin-4-yl, 2-methylsulfonyl-6-ethylpyrimidin-4-yl, 2-phenylsulfonyl-5-chloro-6-methylpyrimidinyl, 2,6-bis-methylsulfonylpyrimidin-4-yl, 2,6-bis-methylsulfonyl-5-chloropyrimidin-4-yl, 2,4-bis-methylsulfonylpyrimidine-5-sulfonyl, 2-methylsulfonylpyrimidin-4-yl, 2-phenylsulfonylpyrimidin-4-yl, 2-trichloromethylsulfonyl-6-methylpyrimidin-4-yl, 2-methylsulfonyl-5-chloro-6-methylpyrimidin-4-yl, 2-methylsulfonyl-5-bromo-6-methylpyrimidin-4-yl, 2-methylsulfonyl-5-chloro-6-ethylpyrimidin-4-yl, 2-methylsulfonyl-5-chloro-6-chloromethylpyrimidin-4-yl, 2-methylsulfonyl-4-chloro-6-methylpyrimidine-5-sulfonyl, 2-methylsulfonyl-5-nitro-6-methylpyrimidin-4-yl, 2,5,6-tris-methylsulfonylpyrimidin-4-yl, 2-methylsulfonyl-5,6-dimethylpyridin-4-yl, 2-ethylsulfonyl-5-chloro-6-methylpyrimidin-4-yl, 2-methyl-sulfonyl-6-chloropyrimidin-4-yl, 2,6-bis-methylsulfonyl-5-chloropyrimidin-4-yl, 2-methylsulfonyl-6-carbonylpyrimidin-4-yl, 2-methylsulfonyl-5-sulfopyrimidin-4-yl, 2-methylsulfonyl-6-carbomethoxypyrimidin-4-yl, 2-methylsulfonyl-5-carboxypyrimidin-4-yl, 2-methylsulfonyl-5-cyano-6-methoxypyrimidin-4-yl, 2-methylsulfonyl-5-chloropyrimidin-4-yl, 2-sulfoethylsulfonyl-6-methylpyrimidin-4-yl, 2-methylsulfonyl-5-bromopyrimidin-4-yl, 2-phenylsulfonyl-5-chloropyrimidin-4-yl, 2-carboxymethylsulfonyl-5-chloro-6-methylpyrimidin-4-yl, 2-methylsulfonyl-6-chloropyrimidine-4- and -5-carbonyl, 2,6-bis(methylsulfonyl)pyrimidine-4- or-5-carbonyl, 2-ethylsulfonyl-6-chloropyrimidine-5-carbonyl, 2,4-bis(methylsulfonyl)pyrimidine-5-sulfonyl, 2-methylsulfonyl-4-chloro-6-methylpyrimidine-5-sulfonyl or-carbonyl, triazine rings containing ammonium groups, such as trimethylammonium-4-phenylamino- or-4-(o-, m- or p-sulfophenyl)aminotriazin-6-yl, 2-(1,1 -dimethylhydrazinium )-4-phenylamino- or -4-(o-, m- or p-sulfophenyl)aminotriazin-6-yl, 2-(2-isopropylidene-1,1-dimethyl)hydrazinium-4-phenylamino- or -4-(o-, m- or p-sulfophenyl)aminotriazin-6-yl, 2-N-aminopyrrolidinium or 2-aminopiperidinium-4-phenylamino- or -4-(o-, m- or p-sulfophenyl)aminotriazin-6-yl, 2-N-aminopyrrolidinium or 2-N-aminopiperidinium-4-phenlyamino- or -4-(o-, m- or p-sulfophenyl)aminotriazin-6-yl, and furthermore 4-phenylamino- or 4-(sulfophenylamino)triazin-6-yl radicals which contain 1,4-bis-azabicyclo[2,2,2]octane or 1,2-bis-azabicyclo[0,3,3]octane bonded quaternally in the 2-position via a nitrogen bond, 2-pyridinium-4-phenylamino- or 4-(o-, m- or p-sulfophenyl)aminotriazin-6-yl and corresponding 2-oniumtriazin-6-yl radicals which are substituted in the 4-position by alkylamino, such as methylamino, ethylamino or β-hydroxyethylamino, or alkoxy, such as methoxy or alkoxy, or aroxy, such as phenoxy or sulfophenoxy groups; 2-chlorobenzothiazole-5- or -6-carbonyl or -5- or -6-sulfonyl, 2-arylsulfonyl- or -alkylsulfonylbenzothiazole-5- or -6-carbonyl or -5- or -6-sulfonyl, such as 2-methylsulfonyl- or 2-ethoxysulfonylbenzothiazole-5- or 6-sulfonyl- or -carbonyl-, 2-phenylsulfonylbenzothiazole-5- or -6-sulfonyl or -carbonyl and the corresponding 2-sulfobenzothiazole-5- or 6-carbonyl or -sulfonyl derivatives, containing sulfo groups in the fused-on benzene ring, 2-chlorobenzoxazole-5- or -6-carbonyl or -sulfonyl, 2-chlorobenzimidazole-5- or -6-carbonyl or sulfonyl, 2-chloro-1-methylbenzimidazole-5- or 6-carbonyl or -sulfonyl, 2-chloro-4-methyl-1,3-thiazole-5-carbonyl or -4- or -5-sulfonyl, the N-oxide of 4-chloro- or 4-nitroquinoline-5-carbonyl or also the radicals 5-chloro-2,6-difluoro-1,3-dicyanophenyl, 2,4-difluoro-1,3,5-tricyanophenyl, 2,4,5-trifluoro-1,3-dicyanophenyl, 2,4-dichloro-5-methylsulfonylpyrimidin-6-yl, 2,4-trichloro-5-ethylsulfonylpyrimidin-6-yl, 2-fluoro-5-methylsulfonyl-6'-(2'-sulfophenylamino)pyrimidin-4-yl and 2,5-dichloro-6-methylsulfonylpyrimidin-4-yl.

A group of suitable reactive groups comprises those of the formulae ##STR14## in which W is a group of the formula --SO₂ --NR₅ --, --CONR₅ -- or --NR₅ CO--, R₅ is hydrogen, C₁ -C₄ alkyl which is unsubstituted or substituted by hydroxyl, sulfo, sulfato, carboxyl or cyano, or a radical of the formula ##STR15## R is hydrogen, hydroxyl, sulfo, sulfato, carboxyl, cyano, halogen, C₁ -C₄ alkoxycarbonyl,

C₁ -C₄ alkanoyloxy, carbamoyl or the group-SO₂ -Z,

Z is the radical --CH═CH₂ or --CH₂ --CH₂ --Y,

Y is a leaving group,

E is the radical --O-- or --NR₇,

R₇ is hydrogen or C₁ -C₄ alkyl,

alk and alk' independently of one another are C₁ -C₆ alkylene, arylene is a phenylene or naphthylene radical which is unsubstituted or substituted by sulfo, carboxyl, C₁ -C₄ alkyl, C₁ -C₄ alkoxy or halogen,

R₆ is hydrogen or C₁ -C₄ alkyl which is unsubstituted or substituted by carboxyl, cyano, hydroxyl, sulfo or sulfato and

X is a group which can be split off as an anion and

T is a radical of the formula ##STR16## in which R, R₅, R₆, E, W, Z, alk, alk' and arylene are as defined above and p is 0 or 1.

Suitable leaving groups Y are, for example, --Cl, --Br, --F, --OSO₃ H, --SSO₃ H, --OCO--CH₃, --OPO₃ H₂, --OCO--CCl₃, --OCO--CHCl₂, --OCO--CH₂ Cl, --OSO₂ --C₁ -C₄ alkyl, --OSO₂ --N(C₁ -C₄ alkyl)₂ or --OCO--C₆ H₅.

Y is preferably a group of the formula --Cl, --OSO₃ H, --SSO₃ H, --OCO--CH₃, --OCO--C₆ H₅ or --OPO₃ H₂, in particular --OSO₃ H.

alk and alk' independently of one another are, for example, a methylene, ethylene, 1,3-propylene, 1,4-butylene, 1,5-pentylene or 1,6-hexylene radical or branched isomers thereof.

alk and alk' are preferably a C₁ -C₄ alkylene radical, and particularly preferably an ethylene radical.

R is preferably hydrogen or the group --SO₂ --Z, in which Z is as defined above. R is particularly preferably hydrogen.

R₅ is preferably hydrogen, C₁ -C₄ alkyl or a group --alk--SO₂ --Z, in which alk and Z are in each case as defined above. R₅ is particularly preferably hydrogen or C₁ -C₄ alkyl, in particular hydrogen.

R₆ is preferably hydrogen or a C₁ -C₄ alkyl radical, and particularly preferably hydrogen.

Arylene is preferably a 1,3- or 1,4-phenylene radical, which is unsubstituted or substituted, for example by sulfo, methyl, methoxy or carboxyl.

E is preferably --NH--, and particularly preferably --O--.

W is preferably a group of the formula --CONH-- or --NHCO--.

X is, for example, fluorine, chlorine, bromine, sulfo, C₁ -C₄ alkylsulfonyl or phenylsulfonyl, and preferably fluorine or chlorine.

Other interesting reactive groups are those of the formula (4) in which T is a group which can be split off as an anion or is a non-reactive substituent.

A group T which can be split off as an anion is here, for example, fluorine, chlorine, bromine, sulfo, C₁ -C₄ alkylsulfonyl or phenylsulfonyl, and preferably fluorine or chlorine.

A non-reactive substituent T can be, for example, a hydroxyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, amino, N-C₁ -C₄ alkylamino or N,N-di-C₁ -C₄ alkylamino, where the alkyl is unsubstituted or substituted, for example by sulfo, sulfato, hydroxyl, carboxyl or phenyl, cyclohexylamino, morpholino or N-C₁ -C₄ alkyl-N-phenylamino or phenylamino or naphthylamino radical, where the phenyl or naphthyl is unsubstituted or substituted, for example by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, carboxyl, sulfo or halogen.

Examples of suitable non-reactive substituents T are amino, methylamino, ethylamino, β-hydroxyethylamino, N,N-di-β-hydroxyethylamino, β-sulfoethylamino, cyclohexylamino, morpholino, o-, m- or p-chlorophenylamino, o-, m- or p-methylphenylamino, o-, m- or p-methoxyphenylamino, o-, m- or p-sulfophenylamino, disulfophenylamino, o-carboxyphenylamino, 1- or 2-naphthylamino, 1-sulfo-2-naphthylamino, 4,8-disulfo-2-naphthylamino, N-ethyl-N-phenylamino, N-methyl-N-phenylamino, methoxy, ethoxy, n- or iso-propoxy and hydroxyl.

A non-reactive substituent T is preferably amino, N-C₁ -C₄ alkylamino, which is unsubstituted in the alkyl part or substituted by hydroxyl, sulfato or sulfo, morpholino, phenylamino or N-C₁ -C₄ alkyl-N-phenylamino, in which the phenyl is in each case unsubstituted or substituted by sulfo, carboxyl, methyl or methoxy. Phenylamino or N-C₁ -C₄ alkyl-N-phenylamino, in which the phenyl is in each case unsubstituted or substituted by sulfo, carboxyl, methyl or methoxy, are particularly preferred.

Other interesting reactive groups are pyrimidine or quinoxaline radicals, which in each case have at least one group which can be split off as an anion. Examples are the 2,3-dichloroquinoxaline-6-carbonylamino radical, the 2,4-dichloropyrimidine-5-carbonylamino radical and the radical of the formula ##STR17## in which one of the radicals X₁ is a group which can be split off as an anion and the other radical X₁ is as defined and preferred for a non-reactive substituent T, or is a radical of the formulae (5a) to (5e) or a group which can be split off as an anion,

X₂ is a negative substituent and

R₆ independently is as defined under formula (4).

The radical X₁ which can be split off as an anion is preferably fluorine or chlorine. Examples of suitable radicals X₂ are nitro, cyano, C₁ -C₄ alkylsulfonyl, carboxyl, chlorine, hydroxyl, C₁ -C₄ alkoxysulfonyl, C₁ -C₄ alkylsulfonyl, C₁ -C₄ alkoxycarbonyl or C₂ -C₄ alkanoyl, where chlorine, cyano and methylsulfonyl are preferred for X₂.

Particularly preferred reactive groups are those of the formula (3a), in which Z is as defined and preferred above, in particular in which Z is a vinyl or β-sulfatoethyl radical, and those of the formula (4), in which T, X and R₆ are as defined and preferred above. T here is particularly preferably a non-reactive radical, in particular phenylamino or N-C₁ -C₄ alkyl-N-phenylamino, in which the phenyl is in each case unsubstituted or substituted by sulfo, carboxyl, methyl or methoxy. X here is particularly preferably fluorine or chlorine. R₆ here is particularly preferably hydrogen, methyl or ethyl, in particular hydrogen. The radical of the formula (3a) is particularly preferred as the reactive group.

The substituent --NHR₁₂, as a halotriazinylamino radical which may be further substituted, in the radical of the formulae (2d) and (2e) is preferably a radical of the formula (4) in which R₆ is hydrogen; the radical of the formula R₄ is as preferred above.

The radical Z' in the radicals of the formulae (2g) and (2h) is preferably β-sulfatoethyl, β-haloethyl or vinyl, in particular β-sulfatoethyl or vinyl, preferably β-sulfatoethyl.

Preferably, the radicals A₁ and A₂ contain no reactive groups.

Radicals of a diazo dye are, in particular the following:

Dye radicals of a disazo dye of the formula

    D.sub.1 --N═N--M--N═N--K--                         (7) or

    --D.sub.1 --N═N--M--N═N--K                         (8).

In these formulae, D₁ is the radical of a diazo component of the benzene or naphthalene series,

M is the radical of a middle component of the benzene or naphthalene series,

K is the radical of a coupling component of the benzene, naphthalene, pyrazolone, 6-hydroxy-2-pyridone or acetoacetic acid arylamide series,

where D₁, M and K can carry the substituents customary in azo dyes, for example those defined above. Such substituents are, in particular, C₁ -C₄ alkyl or C₁ -C₄ alkoxy which are unsubstituted or further substituted by hydroxyl, sulfo or sulfato, halogen, carboxyl, sulfo, nitro, cyano, trifluoromethyl, sulfamoyl, carbamoyl, amino, ureido, hydroxyl, carboxyl, sulfomethyl, C₂ -C₄ alkanoylamino, benzoylamino which is unsubstituted or substituted in the phenyl ring by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen or sulfo, phenyl which is unsubstituted or substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl or sulfo, and fibre-reactive radicals, where the fibre-reactive radicals are as defined and preferred above.

Particularly preferred radicals of a disazo dye are the following: ##STR18## in which R₁₀ is 0 to 3 identical or different substituents from the group comprising C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo,

R₁₀ ' is as defined for R₁₀ and can additionally be C₁ -C₄ hydroxyalkoxy or C₁ -C₄ sulfatoalkoxy,

R₁₁ is 0 to 3 identical or different substituents from the group comprising halogen, nitro, cyano, trifluoromethyl, sulfamoyl, carbamoyl, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, amino, acetylamino, ureido, hydroxyl, carboxyl, sulfomethyl and sulfo and Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl.

The radicals of the formulae (9a) to (9d) can also contain, as further substituents in the phenyl or naphthyl rings, a radical of the formula --SO₂ Z' in which Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl. Z' is preferably β-sulfatoethyl or vinyl, in particular vinyl.

The radical of a formazan dye is preferably a dye radical of the formula ##STR19## in which the benzene nuclei contain no further substituents or are further substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylsulfonyl, halogen or carboxyl.

The radical of a phthalocyanine dye is preferably a radical of the formula ##STR20## in which Pc is the radical of a metal phthalocyanine, in particular the radical of a copper phthalocyanine or nickel phthalocyanine;

W' is --OH and/or --NR₉ R₉ ';

R₉ and R₉ ' independently of one another are hydrogen or C₁ -C₄ alkyl which is unsubstituted or substituted by hydroxyl or sulfo;

R₈ is hydrogen or C₁ -C₄ alkyl;

E' is a phenylene radical which is unsubstituted or substituted by C₁ -C₄ alkyl, halogen, carboxyl or sulfo, or a C₂ -C₆ alkylene radical; and

k is 1 to 3.

R₉ and R₉ ' are preferably hydrogen. E' is preferably a phenylene radical which is unsubstituted or substituted by C₁ -C₄ alkyl, halogen, carboxyl or sulfo.

The radical of a dioxazine dye is preferably a radical of the formula ##STR21## in which E' is a phenylene radical which is unsubstituted or substituted by C₁ -C₄ alkyl, halogen, carboxyl or sulfo, or a C₂ -C₆ alkylene radical, and the outer benzene rings in the formula (11 ) contain no further substituents or are further substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, acetylamino, nitro, halogen, carboxyl, sulfo or --SO₂ --Z', in which Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl.

The radical of an anthraquinone dye is preferably a radical of the formula ##STR22## in which G is a phenylene, cyclohexylene, phenylenemethylene or C₂ -C₆ alkylene radical, and in which the anthraquinone nucleus can be substituted by a further sulfo group and a phenyl radical G can be substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl or sulfo, and the dye preferably contains at least 2 sulfo groups. G is preferably a phenyl radical which is unsubstituted or substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl or sulfo.

The radical A₁ is preferably a radical of the formulae (2a) to (2h), (9a) to (9h), (10), (11) or (12), in particular a radical of the formulae (9a) to (9h), (10), (11) or (12).

A₁ and A₂ are very particularly preferably radicals of an anthraquinone, phthalocyanine, dioxazine, formazan or disazo dye or radicals of the formulae (2a) to (2h), where A₁ and A₂ have different meanings to one another. In particular, A₁ and A₂ are different radicals of the formulae (2a) to (2h), (9a) to (9h), (10), (11 ) or (12).

Very particularly important reactive dyes of the formula (1) are those in which A₁ is a radical of the formulae (9a) to (9h), (10), (11) or (12) and A₂ is a radical of the formulae (2a) to (2h), (9a) to (9h), (10), (11) or (12).

The radicals Y₁, Y₂, R₁, R₂, R₃, R₄ and B of the reactive dyes of the formula (1) are as defined and preferred above here.

Very particularly important reactive dyes of the formula (1) are those in which

Y₁ and Y₂ independently of one another are fluorine or chlorine,

R₁, R₂, R₃ and R₄ independently of one another are hydrogen, methyl or ethyl, in particular hydrogen,

B is a C₂ -C₁₂ alkylene radical, which can be interrupted by 1, 2 or 3 --O-- radicals, and A₁ and A₂ are as defined and preferred above.

The present invention furthermore relates to a process for the preparation of reactive dyes of the formula (1), which comprises reacting radicals of the formulae

    A.sub.1 --N(R.sub.1)H (13a) and A.sub.2 --N(R.sub.4)H (13b)

or corresponding dye intermediates, at least one halotriazine compound and one diamine of the formula ##STR23## in which A₁, A₂, R₁, R₂, R₃, R₄ and B are as defined under formula (1), with one another in any sequence, or, if dye intermediates are used, by convening the resulting intermediates into the desired dyes, and if appropriate then carrying out a further conversion reaction.

The preparation of the end dyes from intermediates is, in particular, a coupling reaction which leads to azo dyes.

Since the individual process steps defined above can be carded out in various sequences, if appropriate in some cases also at the same time, various process variants are possible. The reaction is in general carried out stepwise in succession, the sequence of the simple reactions between the individual reaction components advantageously depending on the particular conditions.

One process variant comprises subjecting one of the radicals of the formulae (13a) and (13b) to a condensation reaction with a halotriazine compound, subjecting the resulting product to a condensation reaction with a diamine of the formula (14) and reacting the resulting reaction product with the other radical of the formulae (13b) and (13a), which has first been subjected to a condensation reaction with a halotriazine compound.

The halotriazine compounds used are preferably cyanuric halides, for example cyanuric chloride or cyanuric fluoride. A carboxypyridinium compound is as a rule introduced after a condensation reaction on the corresponding cyanuric halides.

The compounds of the formulae (13a), (13b) and (14) and the halotriazine compounds are known or can be obtained analogously to known compounds.

The individual condensation reactions are carded out, for example, by a process known per se, as a rule in aqueous solution, at a temperature of, for example, 0° to 50° C. and a pH of, for example, 4 to 9.

The dyes of the formula (1) according to the invention which contain a sulfo or sulfato group are either in the form of their free acid or, preferably, in the form of salts thereof. Salts are, for example, the alkali metal, alkaline earth metal or ammonium salts or the salts of an organic amine. Examples are the sodium, lithium, potassium or ammonium salts or the salt of mono-, di- or triethanolamine.

The dyes according to the invention are suitable for dyeing and printing the most diverse materials, such as fibre material containing hydroxyl groups or containing nitrogen. Examples are silk, leather, wool, polyamide fibres and polyurethanes, and in particular all types of cellulosic fibre materials. Such cellulosic fibre materials are, for example, the natural cellulosic fibres, such as cotton, linen and hemp, and cellulose and regenerated cellulose. The dyes according to the invention are also suitable for dyeing or printing the fibres containing hydroxyl groups which are contained in blend fabrics, for example mixtures of cotton with polyester fibres or polyamide fibres. The dyes according to the invention are particularly suitable for dyeing or printing cellulosic fibre materials. They can furthermore be used for dyeing or printing natural or synthetic polyamide fibre materials.

The dyes according to the invention can be applied to the fibre material and fixed on the fibre in various ways, in particular in the form of aqueous dye solutions and printing pastes. They are suitable both for the exhaust method and for dyeing by the pad-dyeing method, in which the goods are impregnated with aqueous dye solutions, which contain salts if appropriate, and the dyes are fixed after an alkali treatment or in the presence of alkali, if appropriate under the action of heat. They are particularly suitable for the so-called cold pad-batch process, in which the dye is applied to the padder together with the alkali and is then fixed by storage at room temperature for several hours. After fixing, the dyeings or prints are rinsed thoroughly with cold and hot water, if appropriate with the addition of an agent which has a dispersing action and promotes diffusion of the non-fixed portions.

The dyes according to the invention have a high reactivity, good fixing capacity and a very good build-up capacity. They can therefore be used by the exhaust dyeing method at low dyeing temperatures, and require only short steaming times in the pad-steam process. The degrees of fixing are high and the non-fixed portions can easily be washed out, the difference between the degree of exhaustion and degree of fixing being remarkably small, i.e. the soaping loss is very low. The dyes according to the invention are also particularly suitable for printing, in particular on cotton, and also for printing nitrogen-containing fibres, for example wool or silk or blend fabrics which comprise wool or silk.

The dyeings and prints produced with the dyes according to the invention have a high colour strength and a high fibre-dye bond stability both in the acid and in the alkaline range, and furthermore a good light-fastness and very good wet-fastness properties, such as fastnesses to washing, water, sea water, crossdyeing and perspiration, as well as a good fastness to pleating, fastness to ironing and fastness to rubbing.

The following examples serve to illustrate the invention. Temperatures are stated in degrees Celsius and pans and percentages are by weight, unless stated otherwise. Parts by weight bear the same relation to parts by volume as the kilogram to the liter.

Example 1

14 parts of cyanuric fluoride are added dropwise to a neutral solution of 53 parts of 1-amino-4-(3-amino-2,4,6-trimethyl-5-sulfophenyl)anthraquinone-2-sulfonic acid and 5 parts of disodium hydrogen phosphate in 500 parts of water at a temperature below 2° C.; during this procedure, the pH is kept constant by addition of sodium hydroxide solution. When the reaction has ended, 6 parts of ethylenediamine in 54 parts of water are added dropwise such that the temperature does not exceed 5° C. and the pH remains at a value of 6. The pH is then kept at a value of 6.

A solution of 1-amino-4-{3-[4-(2-aminoethylamino)-6-fluoro- 1,3,5-triazin-2-ylaminol-2,4,6-trimethyl-5-sulfophenyl) }anthraquinone-2-sulfonic acid (solution 1).

14 parts of cyanuric fluoride are added dropwise to a neutral solution of 60 parts of the copper complex of 5-amino-3-[3-phenyl- 5-(2-carboxy-5-sulfophenyl)- 1-formazano]-4-hydroxybenesulfonic acid and 5 parts of disodium hydrogen phosphate in 500 parts of water at a temperature below 2° C.; during this procedure, the pH is kept constant by addition of sodium hydroxide solution.

A solution of 5-[4,6-difluoro-1,3,5-triazin-2-ylamino]-3-[3-phenyl-5-(2-carboxy-5-sulfophenyl)- 1-formazano]-4-hydroxybenzenesulfonic acid is obtained (solution 2).

Solution 2 is added to solution 1 and the pH is increased to and kept at a value of 8.5. The mixture is allowed to warm to room temperature, the solution is freed from salts by dialysis and the dye is evaporated. A dye which, in the form of the free acid, corresponds to the compound of the formula ##STR24## in which A₁ is a radical of the formula ##STR25## and A₂ is a radical of the formula ##STR26## is obtained. The resulting dye dyes cotton in brilliant blue colour shades.

Example 2

19 parts of cyanuric chloride are stirred vigorously into 50 parts of water, with addition of a wetting agent and 5 parts of disodium hydrogen phosphate, at a temperature of 0° C. A neutral solution of 53 parts of 1-amino-4-(3-amino-2,4,6-trimethyl-5-sulfophenyl)anthraquinone-2-sulfonic acid in 450 parts of water is added dropwise; during this procedure, the pH is kept at a value of 4.5 by addition of sodium hydroxide solution. When the reaction has ended, 6 parts of ethylenediamine in 54 parts of water are added dropwise such that the temperature remains below 15° C. and the pH remains at a value of 7. The pH is then increased to and kept at a value of 8.5. To bring the conversion to completion, the mixture is heated to a temperature of 40° C. towards the end of the reaction. A solution of 1-amino-4-{3-[(2-aminoethylamino)-6-chloro- 1,3,5-triazin-2-ylamino]-2,4,6-trimethyl-5-sulfophenyl}anthraquinone-2-sulfonic acid (solution 1) is obtained.

19 parts of cyanuric chloride are stirred vigorously into 50 parts of water, with addition of a wetting agent and 5 parts of disodium hydrogen phosphate, at a temperature of 0° C. A neutral solution of 48 parts of 2-(2-acetylamino-4-aminophenylazo)naphthalene-1,5-disulfonic acid in 450 parts of water is added dropwise, during which the pH is kept at a value of 4.5 by addition of sodium hydroxide solution. A solution of 2-[2-acetylamino-4-(4,6-dichloro-1,3,5-triazin-2-ylamino)phenylazo]-naphthalene-1,5-disulfonic acid is obtained (solution 2).

Solution 2 is added to solution I and the pH is increased to and kept at a value of 8.5. To bring the conversion to completion, the mixture is heated to a temperature of 40° C. towards the end of the reaction. The solution is freed from salts by dialysis and the dye is evaporated. A dye which, in the form of the free acid, corresponds to the compound of the formula ##STR27## in which A₁ is a radical of the formula ##STR28## and A₂ is a radical of the formula ##STR29## is obtained. The resulting dye dyes cotton in brilliant green colour shades.

Examples 3 to 187

Dyes of the formula ##STR30## in which A₁ and A₂ are as defined in columns 2 and 3 in the following Table 1, can be obtained in a manner analogous to that described in Example 1. The dyes dye cotton in the colour shades shown in column 4 in Table 1. The radicals A₁ and A₂ are identified with the letters A to Z5, which are defined as follows: ##STR31##

                  TABLE 1                                                          ______________________________________                                         Ex.       A.sub.1                                                                              A.sub.2    Colour shade on cotton                              ______________________________________                                          3        A     P          green                                                4        A     Q          green                                                5        A     R          green                                                6        A     S          green                                                7        A     T          green                                                8        A     U          green                                                9        A     V          brilliant green                                     10        B     P          green                                               11        B     Q          green                                               12        B     R          green                                               13        B     S          green                                               14        B     T          green                                               15        B     U          green                                               16        B     V          brilliant green                                     17        C     L          reddish-tinged orange                               18        C     P          olive                                               19        C     Q          olive                                               20        C     R          olive                                               21        C     S          olive                                               22        D     P          olive                                               23        D     Q          olive                                               24        D     R          olive                                               25        D     S          olive                                               26        E     L          scarlet                                             27        E     O          brown                                               28        E     T          olive                                               29        E     U          olive                                               30        F     G          orange                                              31        F     H          orange                                              32        F     I          reddish-tinged orange                               33        F     J          reddish-tinged orange                               34        F     L          scarlet                                             35        F     M          scarlet                                             36        F     N          scarlet                                             37        G     H          scarlet                                             38        G     I          red-orange                                          39        G     J          red-orange                                          40        G     L          scarlet                                             41        G     M          scarlet                                             42        G     N          scarlet                                             43        H     I          red-orange                                          44        H     J          red-orange                                          45        H     L          scarlet                                             46        H     M          scarlet                                             47        H     N          scarlet                                             48        I     J          scarlet                                             49        I     L          red                                                 50        I     M          red                                                 51        I     N          red                                                 52        J     L          red                                                 53        J     M          red                                                 54        J     N          red                                                 55        K     L          red                                                 56        K     M          red                                                 57        K     N          red                                                 58        K     P          violet                                              59        K     S          violet                                              60        K     U          claret                                              61        K     V          claret                                              62        L     M          red                                                 63        L     N          red                                                 64        L     P          violet                                              65        L     S          violet                                              66        L     U          violet                                              67        L     V          violet                                              68        M     N          red                                                 69        M     P          violet                                              70        M     S          violet                                              71        M     U          violet                                              72        M     V          violet                                              73        N     P          violet                                              74        N     S          violet                                              75        N     U          violet                                              76        N     V          violet                                              77        P     Q          blue                                                78        P     R          blue                                                79        P     S          blue                                                80        P     T          blue                                                81        P     U          blue                                                82        Q     R          blue                                                83        Q     S          blue                                                84        Q     T          blue                                                85        Q     U          blue                                                86        R     S          blue                                                87        R     T          blue                                                88        R     U          blue                                                89        S     T          blue                                                90        S     U          blue                                                91        T     U          navy blue                                           92        W     M          yellowish-tinged red                                93        W     Y          red-brown                                           94        W     Z          yellowish-tinged red                                95        W     Z1         yellowish-tinged red                                96        W     Z2         red                                                 97        W     Z3         red                                                 98        W     L          red                                                 99        W     J          red                                                 100       W     I          red                                                 101       W     G          scarlet                                             102       W     F          orange                                              103       X     M          yellowish-tinged red                                104       X     Y          scarlet                                             105       X     Z          yellowish-tinged red                                106       X     Z1         yellowish-tinged red                                107       X     Z2         red                                                 108       X     Z3         red                                                 109       X     L          red                                                 110       X     J          scarlet                                             111       X     I          scarlet                                             112       X     F          scarlet                                             113       X     G          scarlet                                             114       Y     F          yellowish-tinged red                                115       Y     G          yellowish-tinged red                                116       Y     H          yellowish-tinged red                                117       Y     I          red                                                 118       Y     J          red                                                 119       Y     K          red                                                 120       Y     L          red                                                 121       Y     N          red                                                 122       Y     P          violet                                              123       Y     S          violet                                              124       Y     U          violet                                              125       Y     V          brown                                               126       Z     F          yellowish-tinged red                                127       Z     G          yellowish-tinged red                                128       Z     H          yellowish-tinged red                                129       Z     I          red                                                 130       Z     J          red                                                 131       Z     K          red                                                 132       Z     L          red                                                 133       Z     N          red                                                 134       Z     P          violet                                              135       Z     S          violet                                              136       Z     U          violet                                              137       Z     V          brown                                               138       Z1    F          yellowish-tinged red                                139       Z1    G          yellowish-tinged red                                140       Z1    H          yellowish-tinged red                                141       Z1    I          red                                                 142       Z1    J          red                                                 143       Z1    K          red                                                 144       Z1    L          red                                                 145       Z1    N          red                                                 146       Z1    P          violet                                              147       Z1    S          violet                                              148       Z1    U          violet                                              149       Z1    V          brown                                               150       Z2    F          red                                                 151       Z2    G          red                                                 152       Z2    H          red                                                 153       Z2    I          red                                                 154       Z2    J          red                                                 155       Z2    K          red                                                 156       Z2    L          red                                                 157       Z2    N          bluish-tinged red                                   158       Z2    P          violet                                              159       Z2    S          violet                                              160       Z2    U          violet                                              161       Z2    V          brown                                               162       Z3    F          red                                                 163       Z3    G          red                                                 164       Z3    H          red                                                 165       Z3    I          red                                                 166       Z3    J          red                                                 167       Z3    K          red                                                 168       Z3    L          red                                                 169       Z3    N          bluish-tinged red                                   170       Z3    P          violet                                              171       Z3    S          violet                                              172       Z3    U          violet                                              173       Z3    V          brown                                               174       Z4    P          green                                               175       Z4    Q          green                                               176       Z4    R          green                                               177       Z4    S          green                                               178       Z4    T          green                                               179       Z4    U          green                                               180       Z4    V          brilliant green                                     181       Z5    P          green                                               182       Z5    Q          green                                               183       Z5    R          green                                               184       Z5    S          green                                               185       Z5    T          green                                               186       Z5    U          green                                               187       Z5    V          brilliant green                                     ______________________________________                                    

Examples 188 to 374:

Dyes of the formula ##STR32## in which A₁ and A₂ are as defined in Example 1 or in columns 2 and 3 in Examples 3 to 187 of the above Table 1 can be obtained in a manner analogous to that described in Example 2. The dyes dye cotton in the colour shades stated in Example 1 and in column 4 in Table 1.

The procedure described in Examples 1 to 374 is followed, except that a diamine of the formula ##STR33## is used instead of ethylenediamine, affording analogous dyes having corresponding alkylene bridge members.

Dyeing instructions

2 parts of the reactive dye obtained according to Example 1 are dissolved in 400 parts of water; 1500 parts of a solution which contains 53 g of sodium chloride per liter are added. 100 parts of cotton fabric are introduced into this dyebath at 40° C. After 45 minutes, 100 parts of a solution which contains 16 g of sodium hydroxide and 20 g of calcined sodium carbonate per liter are added. The temperature of the dye bath is kept at 40° C. for a further 45 minutes. Thereafter, the dyed goods are rinsed, soaped at the boil with a nonionic detergent for a quarter of an hour, rinsed again and dried.

Printing instructions

3 parts of the reactive dye obtained according to Example 2 are sprinkled, with rapid stirring, into 100 parts of a stock thickener comprising 50 parts of 5% sodium alginate thickener, 27.8 parts of water, 20 parts of urea, 1 part of sodium m-nitrobenzenesulfonate and 1.2 parts of sodium bicarbonate. A cotton fabric is printed with the printing paste thus obtained and dried and the resulting printed material is steamed in saturated steam at 102° C. for 2 minutes. The printed fabric is then rinsed, soaped at the boil, if appropriate, and rinsed again, and then dried. 

What is claimed is:
 1. A reactive dye of the formula ##STR34## in which R₁, R₂, R₃ and R₄ independently of one another are hydrogen or substituted or unsubstituted C₁ -C₄ alkyl,B is an aliphatic bridge member, Y₁ and Y₂ independently of one another are halogen or carboxypyridinium, A₁ is the radical of an anthraquinone, phthalocyanine, dioxazine, formazan or disazo dye, or a radical of the formula ##STR35## in which R₁₀ is 0 to 3 identical or different substituents selected from the group consisting of C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR36## in which R₁₀ is 0 to 3 identical or different substituents selected from the group consisting of C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR37## in which R₁₂ is C₁ -C₄ alkanoyl, benzoyl or a halotriazinyl radical, which contains no further substituents or is further substituted, ##STR38## in which R₁₂ is C₁ -C₄ alkanoyl, benzoyl or a halotriazinyl radical, which contains no further substituents or is further substituted, ##STR39## in which R₁₃ is 0 to 3 identical or different substituents selected from the group consisting of C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo, ##STR40## in which R₁₇ is 0 to 2 identical or different substituents selected from the group consisting of C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo; and Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl, or ##STR41## in which R₁₈ is 0 to 2 identical or different substituents selected from the group consisting of C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo; and Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl, and A₂ is as defined above for A₁, where A₁ and A₂ have different meanings to one another.
 2. A reactive dye according to claim 1, in which Y₁ and Y₂ independently of one another are fluorine or chlorine.
 3. A reactive dye according to claim 1, in which R₁, R₂, R₃ and R₄ independently of one another are hydrogen, methyl or ethyl.
 4. A reactive dye according to claim 1, in which B is a C₂ -C₁₂ alkylene radical which can be interrupted by 1, 2 or 3 members from the group comprising --NH--, --N(CH₃)-- and --O-- and is unsubstituted or substituted by hydroxyl, sulfo or sulfato.
 5. A reactive dye according to claim 1, in which B is a C₂ -C₁₂ alkylene radical, which can be interrupted by 1, 2 or 3 --O-- radicals.
 6. A reactive dye according to claim 1, in which B is a C₂ -C₆ alkylene radical.
 7. A reactive dye according to claim 1, in which A₁ and A₂ are different radicals of the formulae (2a) to (2h), ##STR42## in which R₁₀ is 0 to 3 identical or different substituents selected from the group consisting of C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl and sulfo,R₁₀ ' is as defined for R₁₀ and can additionally be C₁ -C₄ hydroxyalkoxy or C₁ -C₄ sulfatoalkoxy, R₁₁ is 0 to 3 identical or different substituents selected from the group consisting of halogen, nitro, cyano, trifluoromethyl, sulfamoyl, carbamoyl, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, amino, acetylamino, ureido, hydroxyl, carboxyl, sulfomethyl and sulfo and Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl, ##STR43## in which the benzene nuclei contain no further substituents or are further substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylsulfonyl, halogen or carboxyl, ##STR44## in which Pc is the radical of a metal phthalocyanine; W' is --OH and/or --NR₉ R₉ '; R₉ and R₉ ' independently of one another are hydrogen or C₁ -C₄ alkyl which is unsubstituted or substituted by hydroxyl or sulfo; R₈ is hydrogen or C₁ -C₄ alkyl; E' is a phenylene radical which is unsubstituted or substituted by C₁ -C₄ alkyl, halogen, carboxyl or sulfo, or a C₂ -C₆ alkylene radical; and k is 1 to 3, ##STR45## in which E' is a phenylene radical which is unsubstituted or substituted by C₁ -C₄ alkyl, halogen, carboxyl or sulfo, or a C₂ -C₆ alkylene radical, and the outer benzene rings in the formula (11) contain no further substituents or are further substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, acetylamino, nitro, halogen, carboxyl, sulfo or --SO₂ --Z', in which Z' is β-sulfatoethyl, β-thiosulfatoethyl, β-phosphatoethyl, β-acyloxyethyl, β-haloethyl or vinyl, or ##STR46## in which G is a phenylene, cyclohexylene, phenylenemethylene or C₂ -C₆ -alkylene radical, and in which the anthraquinone nucleus contains no further substituents or is further substituted by a sulfo group, and a phenyl radical G contains no further substituents or is further substituted by C₁ -C₄ alkyl, C₁ -C₄ alkoxy, halogen, carboxyl or sulfo.
 8. A reactive dye according to claim 7, in which A₁ is a radical of the formulae (9a) to (9h), (10), (11) or (12) and A₂ is as defined in claim
 7. 9. A reactive dye according to claim 1, in which the radicals A₁ and A₂ in each case contain at least one sulfo group.
 10. A process for dyeing or printing fibre material containing hydroxyl groups or containing nitrogen, which comprises the step of applying to said fibre material a tinctorial amount of a reactive dye according to claim
 1. 11. A process according to claim 10 wherein said fibre material is cellulosic fibre material or natural or synthetic polyamide fibre material. 